One of Donald Trump’s biggest supporters came to his defense Thursday, calling Sen. Ted Cruz’s refusal to endorse him “untenable.”  

Sen. Jeff Sessions, R-Ala., said the Republican Party will be united around Trump and that Cruz is only hurting himself by not   

“Trump is right on all the issues. He’s right down the middle of where the Republican Party would be,” Sessions said. “And you’re not going to support our nominee that won our primaries overwhelmingly? And you’re not going to support him against Hillary Clinton? I mean this is a pretty untenable position, frankly.”  

Asked if it could hurt Cruz’s chances if he decides to seek the party’s nomination in 2020, Sessions said, “Maybe he could come around, but yeah, I think if you’re not going to stand up and be counted in this election, I think it would be problematic.”